29+40 = 33+36 True or false Other people on - *Posting genuine questions cause they need help*

Me - Posting stuff like
“Just say NO to drugs!” Well, If I’m talking to my drugs, I probably already said yes."
And on occasion an actual question.

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?